*
  margin 0
  padding 0
ul, li
   list-style none

.accordion
    display flex
    width 600px
    height 200px
    li
        flex: 1
        cursor pointer
        transition: all 300ms
        text-align: center
        line-height: 200px
      &:nth-child(1)
          background-color: #f66
      &:nth-child(2)
          backgroud-color: #f90
      &:nth-child(3)
          backgroud-color: #09f
      &:nth-child(4)
          backgroud-color: #9c3
      &:nth-child(6)
          backgroud-color: #c39
      &:hover
         flex: 2
         background-color: #ccc